var categories = [
		{id:1, name:"Web应用"},
		{id:2, name:"移动应用"},
		{id:3, name:"云计算与大数据"},
		{id:4, name:"物联网与智能硬件"},
		{id:5, name:"软件工程"},
		{id:6, name:"系统管理"},
		{id:7, name:"编程语言"}
	];